Travelers are voting Aquarium Of The Bay as the best aquarium in San Francisco County. There are 1 aquarium in Pleasanton a city just 30 km from San Francisco County and 1 aquarium in Capitola which is 60 km distant. The most popular of these are Aquarium Of The Bay in Pleasanton and Monterey Bay Aquarium in Capitola. You can find 5 aquariums in California and 35 aquariums in the country of United States. Our members favorite in California is Aquarium Of The Bay and Seattle Aquarium is the top pick in United States. Want more? Check out our map of aquariums in San Francisco County.